A recent change that started reporting break events forgot to push the
event to the line discipline, which meant that a detected break would
not be reported until further characters had been receive (the port
could even have been closed and reopened in between).

Fixes: 08dff274 ("cdc-acm: fix BREAK rx code path adding necessary calls")
Cc: stable@vger.kernel.org
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210929090937.7410-3-johan@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

A recent change that started reporting break events to the line
discipline caused the tty-buffer insertions to no longer be serialised
by inserting events also from the completion handler for the interrupt
endpoint.

Completion calls for distinct endpoints are not guaranteed to be
serialised. For example, in case a host-controller driver uses
bottom-half completion, the interrupt and bulk-in completion handlers
can end up running in parallel on two CPUs (high-and low-prio tasklets,
respectively) thereby breaking the tty layer's single producer
assumption.

Fix this by holding the read lock also when inserting characters from
the bulk endpoint.

Fixes: 08dff274 ("cdc-acm: fix BREAK rx code path adding necessary calls")
Cc: stable@vger.kernel.org
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210929090937.7410-2-johan@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Async feedback patches broke enumeration on Windows 10 previously fixed
by commit 789ea773 ("usb: gadget: f_uac2: always increase endpoint
max_packet_size by one audio slot").

While the existing calculation for EP OUT capture for async mode yields
size+1 frame due to uac2_opts->fb_max > 0, playback side lost the +1
feature.  Therefore the +1 frame addition must be re-introduced for
playback. Win10 enumerates the device only when both EP IN and EP OUT
max packet sizes are (at least) +1 frame.

Fixes: e89bb428 ("usb: gadget: u_audio: add real feedback implementation")
Cc: stable <stable@vger.kernel.org>
Tested-by: Henrik Enquist <henrik.enquist@gmail.com>
Tested-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20210924080027.5362-1-pavel.hofman@ivitera.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

CONFIG_WWAN_CORE was with CONFIG_WWAN in commit 89212e16 ("net: wwan:
Fix WWAN config symbols"), but did not update all users of it. Change it
back to use CONFIG_WWAN instead.

Fixes: 89212e16 ("net: wwan: Fix WWAN config symbols")
Cc: <stable@vger.kernel.org>
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20210929194547.46954-2-rikard.falkeborn@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

When passing 'phys' in the devicetree to describe the USB PHY phandle
(which is the recommended way according to
Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) the
following NULL pointer dereference is observed on i.MX7 and i.MX8MM:

[    1.489344] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098
[    1.498170] Mem abort info:
[    1.500966]   ESR = 0x96000044
[    1.504030]   EC = 0x25: DABT (current EL), IL = 32 bits
[    1.509356]   SET = 0, FnV = 0
[    1.512416]   EA = 0, S1PTW = 0
[    1.515569]   FSC = 0x04: level 0 translation fault
[    1.520458] Data abort info:
[    1.523349]   ISV = 0, ISS = 0x00000044
[    1.527196]   CM = 0, WnR = 1
[    1.530176] [0000000000000098] user address but active_mm is swapper
[    1.536544] Internal error: Oops: 96000044 [#1] PREEMPT SMP
[    1.542125] Modules linked in:
[    1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3
[    1.551901] Hardware name: Kontron i.MX8MM N801X S (DT)
[    1.557133] Workqueue: events_unbound deferred_probe_work_func
[    1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)
[    1.568998] pc : imx7d_charger_detection+0x3f0/0x510
[    1.573973] lr : imx7d_charger_detection+0x22c/0x510

This happens because the charger functions check for the phy presence
inside the imx_usbmisc_data structure (data->usb_phy), but the chipidea
core populates the usb_phy passed via 'phys' inside 'struct ci_hdrc'
(ci->usb_phy) instead.

This causes the NULL pointer dereference inside imx7d_charger_detection().

Fix it by also searching for 'phys' in case 'fsl,usbphy' is not found.

Tested on a imx7s-warp board.

Fixes: 746f316b ("usb: chipidea: introduce imx7d USB charger detection")
Cc: stable@vger.kernel.org
Reported-by: Heiko Thiery <heiko.thiery@gmail.com>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210921113754.767631-1-festevam@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

TCPM for DRP should do the same action as SRC_ATTACHED when cc changes in
SRC_STARTUP state. Otherwise, TCPM will transition to SRC_UNATTACHED state
which is not satisfied with the Type-C spec.

Per Type-C spec:
DRP port should move to Unattached.SNK instead of Unattached.SRC if sink
removed.

Fixes: 4b4e02c8 ("typec: tcpm: Move out of staging")
cc: <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20210928111639.3854174-1-xu.yang_2@nxp.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

USB TCPCI Spec, 4.4.3 Mask Registers:
"A masked register will still indicate in the ALERT register, but shall
not set the Alert# pin low."

Thus, the Extended Status will still indicate in ALERT register if vSafe0V
is detected by TCPC even though being masked. In current code, howerer,
this event will not be handled in detection time. Rather it will be
handled when next ALERT event coming(CC evnet, PD event, etc).

Tcpm might transition to a wrong state in this situation. Thus, the vSafe0V
event should not be handled when it's masked.

Fixes: 766c485b ("usb: typec: tcpci: Add support to report vSafe0V")
cc: <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20210926101415.3775058-1-xu.yang_2@nxp.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There is no "connector" child node available on every
platform, so the driver can't fail to probe when it's
missing.

Fixes: 57560ee9 ("usb: typec: tipd: Don't block probing of consumer of "connector" nodes")
Cc: stable@vger.kernel.org # 5.14+
Reported-by: "Regupathy, Rajaram" <rajaram.regupathy@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210930124758.23233-1-heikki.krogerus@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit cb9c1cfc for
USB_LED_TRIG.  This config symbol has bool type and enables extra code
in usb_common itself, not a separate driver.  Enabling it should not
force usb_common to be built-in!

Fixes: cb9c1cfc ("usb: Kconfig: using select for USB_COMMON dependency")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Link: https://lore.kernel.org/r/20210921143442.340087-1-carnil@debian.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit c6e23b89 ("usb: dwc3: gadget: set gadgets parent to the right
controller") changed the device for the UDC and broke the user space scripts
that instantiate the USB gadget(s) via ConfigFS.

Revert it for now until the better solution will be proposed.

Fixes: c6e23b89 ("usb: dwc3: gadget: set gadgets parent to the right controller")
Tested-by: Ferry Toth <fntoth@gmail.com>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211004141839.49079-1-andriy.shevchenko@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The added #ifdefs in the PM rework were almost correct, but still
cause warnings in some randconfig builds:

drivers/usb/host/xhci-tegra.c:2147:12: error: 'tegra_xusb_resume' defined but not used [-Werror=unused-function]
 2147 | static int tegra_xusb_resume(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~
drivers/usb/host/xhci-tegra.c:2105:12: error: 'tegra_xusb_suspend' defined but not used [-Werror=unused-function]
 2105 | static int tegra_xusb_suspend(struct device *dev)

Replace the #ifdef checks with simpler __maybe_unused annotations to
reliably shut up these warnings.

Link: https://lore.kernel.org/all/20210421135613.3560777-2-arnd@kernel.org/
Fixes: 971ee247 ("usb: xhci: tegra: Enable ELPG for runtime/system PM")
Reviewed-by: JC Kuo <jckuo@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211005112057.2700888-1-arnd@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Pull ksmbd fixes from Steve French:
 "Five fixes for the ksmbd kernel server, including three security
  fixes:

   - remove follow symlinks support

   - use LOOKUP_BENEATH to prevent out of share access

   - SMB3 compounding security fix

   - fix for returning the default streams correctly, fixing a bug when
     writing ppt or doc files from some clients

   - logging more clearly that ksmbd is experimental (at module load
     time)"

* tag '5.15-rc2-ksmbd-fixes' of git://git.samba.org/ksmbd:
  ksmbd: use LOOKUP_BENEATH to prevent the out of share access
  ksmbd: remove follow symlinks support
  ksmbd: check protocol id in ksmbd_verify_smb_message()
  ksmbd: add default data stream name in FILE_STREAM_INFORMATION
  ksmbd: log that server is experimental at module load

Pull EDAC fixes from Borislav Petkov:
 "Fix two EDAC drivers using the wrong value type for the DIMM mode"

* tag 'edac_urgent_for_v5.15_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/dmc520: Assign the proper type to dimm->edac_mode
  EDAC/synopsys: Fix wrong value type assignment for edac_mode

Pull thermal fixes from Daniel Lezcano:

 - Fix thermal shutdown after a suspend/resume due to a wrong TCC value
   restored on Intel platform (Antoine Tenart)

 - Fix potential buffer overflow when building the list of policies. The
   buffer size is not updated after writing to it (Dan Carpenter)

 - Fix wrong check against IS_ERR instead of NULL (Ansuel Smith)

* tag 'thermal-v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  thermal/drivers/tsens: Fix wrong check for tzd in irq handlers
  thermal/core: Potential buffer overflow in thermal_build_list_of_policies()
  thermal/drivers/int340x: Do not set a wrong tcc offset on resume

Pull x86 fixes from Thomas Gleixner:
 "A set of fixes for X86:

   - Prevent sending the wrong signal when protection keys are enabled
     and the kernel handles a fault in the vsyscall emulation.

   - Invoke early_reserve_memory() before invoking e820_memory_setup()
     which is required to make the Xen dom0 e820 hooks work correctly.

   - Use the correct data type for the SETZ operand in the EMQCMDS
     instruction wrapper.

   - Prevent undefined behaviour to the potential unaligned accesss in
     the instruction decoder library"

* tag 'x86-urgent-2021-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/insn, tools/x86: Fix undefined behavior due to potential unaligned accesses
  x86/asm: Fix SETZ size enqcmds() build failure
  x86/setup: Call early_reserve_memory() earlier
  x86/fault: Fix wrong signal when vsyscall fails with pkey

Pull timer fix from Thomas Gleixner:
 "A single fix for the recently introduced regression in posix CPU
  timers which failed to stop the timer when requested. That caused
  unexpected signals to be sent to the process/thread causing
  malfunction"

* tag 'timers-urgent-2021-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  posix-cpu-timers: Prevent spuriously armed 0-value itimer

Pull irq fixes from Thomas Gleixner:
 "A set of fixes for interrupt chip drivers:

   - Work around a bad GIC integration on a Renesas platform which can't
     handle byte-sized MMIO access

   - Plug a potential memory leak in the GICv4 driver

   - Fix a regression in the Armada 370-XP IPI code which was caused by
     issuing EOI instack of ACK.

   - A couple of small fixes here and there"

* tag 'irq-urgent-2021-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic: Work around broken Renesas integration
  irqchip/renesas-rza1: Use semicolons instead of commas
  irqchip/gic-v3-its: Fix potential VPE leak on error
  irqchip/goldfish-pic: Select GENERIC_IRQ_CHIP to fix build
  irqchip/mbigen: Repair non-kernel-doc notation
  irqdomain: Change the type of 'size' in __irq_domain_add() to be consistent
  irqchip/armada-370-xp: Fix ack/eoi breakage
  Documentation: Fix irq-domain.rst build warning

Merge misc fixes from Andrew Morton:
 "16 patches.

  Subsystems affected by this patch series: xtensa, sh, ocfs2, scripts,
  lib, and mm (memory-failure, kasan, damon, shmem, tools, pagecache,
  debug, and pagemap)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: fix uninitialized use in overcommit_policy_handler
  mm/memory_failure: fix the missing pte_unmap() call
  kasan: always respect CONFIG_KASAN_STACK
  sh: pgtable-3level: fix cast to pointer from integer of different size
  mm/debug: sync up latest migrate_reason to migrate_reason_names
  mm/debug: sync up MR_CONTIG_RANGE and MR_LONGTERM_PIN
  mm: fs: invalidate bh_lrus for only cold path
  lib/zlib_inflate/inffast: check config in C to avoid unused function warning
  tools/vm/page-types: remove dependency on opt_file for idle page tracking
  scripts/sorttable: riscv: fix undeclared identifier 'EM_RISCV' error
  ocfs2: drop acl cache for directories too
  mm/shmem.c: fix judgment error in shmem_is_huge()
  xtensa: increase size of gcc stack frame check
  mm/damon: don't use strnlen() with known-bogus source length
  kasan: fix Kconfig check of CC_HAS_WORKING_NOSANITIZE_ADDRESS
  mm, hwpoison: add is_free_buddy_page() in HWPoisonHandlable()

Pull SCSI fixes from James Bottomley:
 "Thirty-three fixes, I'm afraid.

  Essentially the build up from the last couple of weeks while I've been
  dealling with Linux Plumbers conference infrastructure issues. It's
  mostly the usual assortment of spelling fixes and minor corrections.

  The only core relevant changes are to the sd driver to reduce the spin
  up message spew and fix a small memory leak on the freeing path"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (33 commits)
  scsi: ses: Retry failed Send/Receive Diagnostic commands
  scsi: target: Fix spelling mistake "CONFLIFT" -> "CONFLICT"
  scsi: lpfc: Fix gcc -Wstringop-overread warning, again
  scsi: lpfc: Use correct scnprintf() limit
  scsi: lpfc: Fix sprintf() overflow in lpfc_display_fpin_wwpn()
  scsi: core: Remove 'current_tag'
  scsi: acornscsi: Remove tagged queuing vestiges
  scsi: fas216: Kill scmd->tag
  scsi: qla2xxx: Restore initiator in dual mode
  scsi: ufs: core: Unbreak the reset handler
  scsi: sd_zbc: Support disks with more than 2**32 logical blocks
  scsi: ufs: core: Revert "scsi: ufs: Synchronize SCSI and UFS error handling"
  scsi: bsg: Fix device unregistration
  scsi: sd: Make sd_spinup_disk() less noisy
  scsi: ufs: ufs-pci: Fix Intel LKF link stability
  scsi: mpt3sas: Clean up some inconsistent indenting
  scsi: megaraid: Clean up some inconsistent indenting
  scsi: sr: Fix spelling mistake "does'nt" -> "doesn't"
  scsi: Remove SCSI CDROM MAINTAINERS entry
  scsi: megaraid: Fix Coccinelle warning
  ...

Pull io_uring fixes from Jens Axboe:
 "This one looks a bit bigger than it is, but that's mainly because 2/3
  of it is enabling IORING_OP_CLOSE to close direct file descriptors.

  We've had a few folks using them and finding it confusing that the way
  to close them is through using -1 for file update, this just brings
  API symmetry for direct descriptors. Hence I think we should just do
  this now and have a better API for 5.15 release. There's some room for
  de-duplicating the close code, but we're leaving that for the next
  merge window.

  Outside of that, just small fixes:

   - Poll race fixes (Hao)

   - io-wq core dump exit fix (me)

   - Reschedule around potentially intensive tctx and buffer iterators
     on teardown (me)

   - Fix for always ending up punting files update to io-wq (me)

   - Put the provided buffer meta data under memcg accounting (me)

   - Tweak for io_write(), removing dead code that was added with the
     iterator changes in this release (Pavel)"

* tag 'io_uring-5.15-2021-09-25' of git://git.kernel.dk/linux-block:
  io_uring: make OP_CLOSE consistent with direct open
  io_uring: kill extra checks in io_write()
  io_uring: don't punt files update to io-wq unconditionally
  io_uring: put provided buffer meta data under memcg accounting
  io_uring: allow conditional reschedule for intensive iterators
  io_uring: fix potential req refcount underflow
  io_uring: fix missing set of EPOLLONESHOT for CQ ring overflow
  io_uring: fix race between poll completion and cancel_hash insertion
  io-wq: ensure we exit if thread group is exiting

Pull block fixes from Jens Axboe:

 - NVMe pull request via Christoph:
      - keep ctrl->namespaces ordered (Christoph Hellwig)
      - fix incorrect h2cdata pdu offset accounting in nvme-tcp (Sagi
        Grimberg)
      - handled updated hw_queues in nvme-fc more carefully (Daniel
        Wagner, James Smart)

 - md lock order fix (Christoph)

 - fallocate locking fix (Ming)

 - blktrace UAF fix (Zhihao)

 - rq-qos bio tracking fix (Ming)

* tag 'block-5.15-2021-09-25' of git://git.kernel.dk/linux-block:
  block: hold ->invalidate_lock in blkdev_fallocate
  blktrace: Fix uaf in blk_trace access after removing by sysfs
  block: don't call rq_qos_ops->done_bio if the bio isn't tracked
  md: fix a lock order reversal in md_alloc
  nvme: keep ctrl->namespaces ordered
  nvme-tcp: fix incorrect h2cdata pdu offset accounting
  nvme-fc: remove freeze/unfreeze around update_nr_hw_queues
  nvme-fc: avoid race between time out and tear down
  nvme-fc: update hardware queues before using them

Pull xen fixes from Juergen Gross:
 "Some minor cleanups and fixes of some theoretical bugs, as well as a
  fix of a bug introduced in 5.15-rc1"

* tag 'for-linus-5.15b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/x86: fix PV trap handling on secondary processors
  xen/balloon: fix balloon kthread freezing
  swiotlb-xen: this is PV-only on x86
  xen/pci-swiotlb: reduce visibility of symbols
  PCI: only build xen-pcifront in PV-enabled environments
  swiotlb-xen: ensure to issue well-formed XENMEM_exchange requests
  Xen/gntdev: don't ignore kernel unmapping error
  xen/x86: drop redundant zeroing from cpu_initialize_context()

Merge tag 'linux-kselftest-fixes-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest fixes from Shuah Khan:

 - fix to Kselftest common framework header install to run before other
   targets for it work correctly in parallel build case.

 - fixes to kvm test to not ignore fscanf() returns which could result
   in inconsistent test behavior and failures.

* tag 'linux-kselftest-fixes-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: kvm: fix get_run_delay() ignoring fscanf() return warn
  selftests: kvm: move get_run_delay() into lib/test_util
  selftests:kvm: fix get_trans_hugepagesz() ignoring fscanf() return warn
  selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn
  selftests: be sure to make khdr before other targets

Pull erofs fixes from Gao Xiang:
 "Two bugfixes to fix the 4KiB blockmap chunk format availability and a
  dangling pointer usage. There is also a trivial cleanup to clarify
  compacted_2b if compacted_4b_initial > totalidx.

  Summary:

   - fix the dangling pointer use in erofs_lookup tracepoint

   - fix unsupported chunk format check

   - zero out compacted_2b if compacted_4b_initial > totalidx"

* tag 'erofs-for-5.15-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: clear compacted_2b if compacted_4b_initial > totalidx
  erofs: fix misbehavior of unsupported chunk format check
  erofs: fix up erofs_lookup tracepoint

Pull cifs fixes from Steve French:
 "Six small cifs/smb3 fixes, two for stable:

   - important fix for deferred close (found by a git functional test)
     related to attribute caching on close.

   - four (two cosmetic, two more serious) small fixes for problems
     pointed out by smatch via Dan Carpenter

   - fix for comment formatting problems pointed out by W=1"

* tag '5.15-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix incorrect check for null pointer in header_assemble
  smb3: correct server pointer dereferencing check to be more consistent
  smb3: correct smb3 ACL security descriptor
  cifs: Clear modified attribute bit from inode flags
  cifs: Deal with some warnings from W=1
  cifs: fix a sign extension bug

Pull char/misc driver fixes from Greg KH:
 "Here are some small char and misc driver fixes for 5.15-rc3.

  Nothing huge in here, just fixes for a number of small issues that
  have been reported. These include:

   - habanalabs race conditions and other bugs fixed

   - binder driver fixes

   - fpga driver fixes

   - coresight build warning fix

   - nvmem driver fix

   - comedi memory leak fix

   - bcm-vk tty race fix

   - other tiny driver fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  comedi: Fix memory leak in compat_insnlist()
  nvmem: NVMEM_NINTENDO_OTP should depend on WII
  misc: bcm-vk: fix tty registration race
  fpga: dfl: Avoid reads to AFU CSRs during enumeration
  fpga: machxo2-spi: Fix missing error code in machxo2_write_complete()
  fpga: machxo2-spi: Return an error on failure
  habanalabs: expose a single cs seq in staged submissions
  habanalabs: fix wait offset handling
  habanalabs: rate limit multi CS completion errors
  habanalabs/gaudi: fix LBW RR configuration
  habanalabs: Fix spelling mistake "FEADBACK" -> "FEEDBACK"
  habanalabs: fail collective wait when not supported
  habanalabs/gaudi: use direct MSI in single mode
  habanalabs: fix kernel OOPs related to staged cs
  habanalabs: fix potential race in interrupt wait ioctl
  mcb: fix error handling in mcb_alloc_bus()
  misc: genwqe: Fixes DMA mask setting
  coresight: syscfg: Fix compiler warning
  nvmem: core: Add stubs for nvmem_cell_read_variable_le_u32/64 if !CONFIG_NVMEM
  binder: make sure fd closes complete
  ...

Pull staging driver fixes from Greg KH:
 "Here are two small staging driver fixes for 5.15-rc3:

   - greybus tty use-after-free bugfix

   - r8188eu ioctl overlap build warning fix

  Note, the r8188eu ioctl has been entirely removed for 5.16-rc1, but
  it's good to get this fixed now for people using this in 5.15.

  Both of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8188eu: fix -Wrestrict warnings
  staging: greybus: uart: fix tty use after free

Pull tty/serial fixes from Greg KH:
 "Here are four small tty/serial driver fixes for 5.15-rc3. They
  include:

   - remove an export now that no one is using it anymore

   - mvebu-uart tx_empty callback fix

   - 8250_omap bugfix

   - synclink_gt build fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: unexport tty_ldisc_release
  tty: synclink_gt: rename a conflicting function name
  serial: mvebu-uart: fix driver's tx_empty callback
  serial: 8250: 8250_omap: Fix RX_LVL register offset

Pull USB driver fixes from Greg KH:
 "Here are some USB driver fixes and new device ids for 5.15-rc3.

  They include:

   - usb-storage quirk additions

   - usb-serial new device ids

   - usb-serial driver fixes

   - USB roothub registration bugfix to resolve a long-reported issue

   - usb gadget driver fixes for a large number of small things

   - dwc2 driver fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits)
  USB: serial: option: add device id for Foxconn T99W265
  USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
  USB: serial: cp210x: add part-number debug printk
  USB: serial: cp210x: fix dropped characters with CP2102
  MAINTAINERS: usb, update Peter Korsgaard's entries
  usb: musb: tusb6010: uninitialized data in tusb_fifo_write_unaligned()
  usb-storage: Add quirk for ScanLogic SL11R-IDE older than 2.6c
  Re-enable UAS for LaCie Rugged USB3-FW with fk quirk
  USB: serial: option: remove duplicate USB device ID
  USB: serial: mos7840: remove duplicated 0xac24 device ID
  arm64: dts: qcom: ipq8074: remove USB tx-fifo-resize property
  usb: gadget: f_uac2: Populate SS descriptors' wBytesPerInterval
  usb: gadget: f_uac2: Add missing companion descriptor for feedback EP
  usb: dwc2: gadget: Fix ISOC transfer complete handling for DDMA
  usb: core: hcd: Modularize HCD stop configuration in usb_stop_hcd()
  xhci: Set HCD flag to defer primary roothub registration
  usb: core: hcd: Add support for deferring roothub registration
  usb: dwc2: gadget: Fix ISOC flow for BDMA and Slave
  usb: dwc3: core: balance phy init and exit
  Revert "USB: bcma: Add a check for devm_gpiod_get"
  ...

instead of removing '..' in a given path, call
kern_path with LOOKUP_BENEATH flag to prevent
the out of share access.

ran various test on this:
smb2-cat-async smb://127.0.0.1/homes/../out_of_share
smb2-cat-async smb://127.0.0.1/homes/foo/../../out_of_share
smbclient //127.0.0.1/homes -c "mkdir ../foo2"
smbclient //127.0.0.1/homes -c "rename bar ../bar"

Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: Ralph Boehme <slow@samba.org>
Tested-by: Steve French <smfrench@gmail.com>
Tested-by: Namjae Jeon <linkinjeon@kernel.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

We get an unexpected value of /proc/sys/vm/overcommit_memory after
running the following program:

  int main()
  {
      int fd = open("/proc/sys/vm/overcommit_memory", O_RDWR);
      write(fd, "1", 1);
      write(fd, "2", 1);
      close(fd);
  }

write(fd, "2", 1) will pass *ppos = 1 to proc_dointvec_minmax.
proc_dointvec_minmax will return 0 without setting new_policy.

  t.data = &new_policy;
  ret = proc_dointvec_minmax(&t, write, buffer, lenp, ppos)
      -->do_proc_dointvec
         -->__do_proc_dointvec
              if (write) {
                if (proc_first_pos_non_zero_ignore(ppos, table))
                  goto out;

  sysctl_overcommit_memory = new_policy;

so sysctl_overcommit_memory will be set to an uninitialized value.

Check whether new_policy has been changed by proc_dointvec_minmax.

Link: https://lkml.kernel.org/r/20210923020524.13289-1-chenjun102@huawei.com
Fixes: 56f3547b ("mm: adjust vm_committed_as_batch according to vm overcommit policy")
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Feng Tang <feng.tang@intel.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Rui Xiang <rui.xiang@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The paired pte_unmap() call is missing before the
dev_pagemap_mapping_shift() returns.  So fix it.

David says:
 "I guess this code never runs on 32bit / highmem, that's why we didn't
  notice so far".

[akpm@linux-foundation.org: cleanup]

Link: https://lkml.kernel.org/r/20210923122642.4999-1-zhengqi.arch@bytedance.comSigned-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Currently, the asan-stack parameter is only passed along if
CFLAGS_KASAN_SHADOW is not empty, which requires KASAN_SHADOW_OFFSET to
be defined in Kconfig so that the value can be checked.  In RISC-V's
case, KASAN_SHADOW_OFFSET is not defined in Kconfig, which means that
asan-stack does not get disabled with clang even when CONFIG_KASAN_STACK
is disabled, resulting in large stack warnings with allmodconfig:

  drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c:117:12: error: stack frame size (14400) exceeds limit (2048) in function 'lb035q02_connect' [-Werror,-Wframe-larger-than]
  static int lb035q02_connect(struct omap_dss_device *dssdev)
             ^
  1 error generated.

Ensure that the value of CONFIG_KASAN_STACK is always passed along to
the compiler so that these warnings do not happen when
CONFIG_KASAN_STACK is disabled.

Link: https://github.com/ClangBuiltLinux/linux/issues/1453
References: 6baec880 ("kasan: turn off asan-stack for clang-8 and earlier")
Link: https://lkml.kernel.org/r/20210922205525.570068-1-nathan@kernel.orgSigned-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

If X2TLB=y (CPU_SHX2=y or CPU_SHX3=y, e.g. migor_defconfig), pgd_t.pgd
is "unsigned long long", causing:

    In file included from arch/sh/include/asm/pgtable.h:13,
		     from include/linux/pgtable.h:6,
		     from include/linux/mm.h:33,
		     from arch/sh/kernel/asm-offsets.c:14:
    arch/sh/include/asm/pgtable-3level.h: In function `pud_pgtable':
    arch/sh/include/asm/pgtable-3level.h:37:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
       37 |  return (pmd_t *)pud_val(pud);
	  |         ^

Fix this by adding an intermediate cast to "unsigned long", which is
basically what the old code did before.

Link: https://lkml.kernel.org/r/2c2eef3c9a2f57e5609100a4864715ccf253d30f.1631713483.git.geert+renesas@glider.be
Fixes: 9cf6fa24 ("mm: rename pud_page_vaddr to pud_pgtable and make it return pmd_t *")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Daniel Palmer <daniel@thingy.jp>
Acked-by: Rob Landley <rob@landley.net>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Cc: Rich Felker <dalias@libc.org>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Sync up MR_DEMOTION to migrate_reason_names and add a synch prompt.

Link: https://lkml.kernel.org/r/20210921064553.293905-3-o451686892@gmail.com
Fixes: 26aa2d19 ("mm/migrate: demote pages during reclaim")
Signed-off-by: Weizhao Ouyang <o451686892@gmail.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mina Almasry <almasrymina@google.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Wei Xu <weixugc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Sync up MR_CONTIG_RANGE and MR_LONGTERM_PIN to migrate_reason_names.

Link: https://lkml.kernel.org/r/20210921064553.293905-2-o451686892@gmail.com
Fixes: 31025351 ("mm/migrate: rename migration reason MR_CMA to MR_CONTIG_RANGE")
Fixes: d1e153fe ("mm/gup: migrate pinned pages out of movable zone")
Signed-off-by: Weizhao Ouyang <o451686892@gmail.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mina Almasry <almasrymina@google.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Wei Xu <weixugc@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The kernel test robot reported the regression of fio.write_iops[1] with
commit 8cc621d2 ("mm: fs: invalidate BH LRU during page migration").

Since lru_add_drain is called frequently, invalidate bh_lrus there could
increase bh_lrus cache miss ratio, which needs more IO in the end.

This patch moves the bh_lrus invalidation from the hot path( e.g.,
zap_page_range, pagevec_release) to cold path(i.e., lru_add_drain_all,
lru_cache_disable).

Zhengjun Xing confirmed
 "I test the patch, the regression reduced to -2.9%"

[1] https://lore.kernel.org/lkml/20210520083144.GD14190@xsang-OptiPlex-9020/
[2] 8cc621d2, mm: fs: invalidate BH LRU during page migration

Link: https://lkml.kernel.org/r/20210907212347.1977686-1-minchan@kernel.orgSigned-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: kernel test robot <oliver.sang@intel.com>
Reviewed-by: Chris Goldsworthy <cgoldswo@codeaurora.org>
Tested-by: "Xing, Zhengjun" <zhengjun.xing@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Building Linux for ppc64le with Ubuntu clang version
12.0.0-3ubuntu1~21.04.1 shows the warning below.

    arch/powerpc/boot/inffast.c:20:1: warning: unused function 'get_unaligned16' [-Wunused-function]
    get_unaligned16(const unsigned short *p)
    ^
    1 warning generated.

Fix it by moving the check from the preprocessor to C, so the compiler
sees the use.

Link: https://lkml.kernel.org/r/20210920084332.5752-1-pmenzel@molgen.mpg.deSigned-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Idle page tracking can also be used for process address space, not only
file mappings.

Without this change, using with '-i' option for process address space
encounters below errors reported.

  $ sudo ./page-types -p $(pidof bash) -i
  mark page idle: Bad file descriptor
  mark page idle: Bad file descriptor
  mark page idle: Bad file descriptor
  mark page idle: Bad file descriptor
  ...

Link: https://lkml.kernel.org/r/20210917032826.10669-1-changbin.du@gmail.comSigned-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>